Home / 137,280,289.01-189,450,498.39-80,768,979.62

Finding the Fourth Proportional to 137,280,289.01, 189,450,498.39 and 80,768,979.62

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Solution

The fourth proportional to 137,280,289.01, 189,450,498.39 and 80,768,979.62 is: 111,463,368.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,280,289.01 : 189,450,498.39 = 80,768,979.62 : x
  2. Step 2: Convert to fraction form
    137,280,289.01/189,450,498.39 = 80,768,979.62/x
  3. Step 3: Cross multiply
    137,280,289.01x = 189,450,498.39 × 80,768,979.62
  4. Step 4: Simplify right side
    137,280,289.01x = 15,301,723,442,513,498
  5. Step 5: Solve for x
    x = 15,301,723,442,513,498/137,280,289.01
  6. Step 6: Final answer
    x = 111,463,368.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.